I am 8 weeks pregnant. I had my first ultrasound yesterday and my baby's heat rate was 170 BPM. Last night around 8:30 pm I fell down the stairs at my house on my back and I am concerned for the baby. I have not felt any pain except were my back and butt hit. Should I be concerned???

yes you should be concerened.
As you should know 8 weeks pregnant has a high risk of miscarriage.
I think that you should go to the doctors and have a scan.
Falling down stairs is one of the worst things that you can do while pregnant.

I feel like your reply was really mean and rude. I all ready feel bad enough about falling down the stairs. You could of said that better like "You should probably go and have you doctor check you out." At 8 weeks I am nervous about everything and your comment was just plan rude.

Your baby is probably just fine. You could call your doctor and ask him. He will ask you if you are having any cramping or bleeding - if you are not, then just take it easy. Falling in later months, especially falling ON your belly, would be more worrisome.

FYI: miscarriage in early pregnancy is more about chromosomal abnormalities that no one can do anything about, than falls and anything the mother does.

If you are ever concerned, just call your doctor's office and ask to speak with his nurse (during office hours). She is there to help you.

Your baby is so completely wrapped in amniotic fluid, tissue and the abdominal muscles that is very unlikely that your fall would have hurt the baby. I too feel but at 5 weeks. My dr said the risk of miscarriage from a fall is extremely unlikely.

My sister in law fell down a flight of stairs just the other day and lost her baby, but she was two weeks from 4 months when that happened, and she fell foward. I hope everything is okay with you and your baby! your probably okay. Keep us updated!